Defiance Flour Mill

Defiance Flour Mill is a three-story brick building on Ruthven Street featuring English bond construction and displaying the company name and establishment date on its facade. The site later included administrative offices, retail spaces, and storage silos that expanded the scale of the complex.

Patrick O'Brien and George Crisp founded the mill in 1898 and relocated it to the current Ruthven Street location in 1901. Following O'Brien's death, his wife Ellen took over operations and grew it to become Queensland's largest flour producer.

The mill shaped the local business district and served as a workplace for many Toowoomba families who depended on its operations. People walked past this building daily on their way through the commercial heart of town.

The building sits in Toowoomba's business district and is easy to spot from the street. Keep in mind it is a heritage site, so visitors can only view it from the outside.

Ellen O'Brien took over the business after her husband's death in 1906 while raising ten children. Her achievement as a mill director during a time when women rarely held such industrial roles is often overlooked.